package xin3.Example07;
class Student{
    private  String name;
    private  int age;
    public Student (){ }
    public  Student (String n){
        name = n;
    }
    public Student (String n,int a){
        name = n;
        age = a;
    }
    public void read (){
        System.out.println("我是："+name+",年龄："+age);
    }
}
public class Example07 {
    public static void main (String[] args){
        Student stu1 =new Student("张三");
        Student Stu2 = new Student("张三",18);
        stu1.read();
        Stu2.read();
    }
}
